Upton Roy ; Graff Alison ; Jolliffe Georginea  & Langer Reinhard  & Williamson Elizabeth  <br/><br/>
Amrican herbal pharmacopoeia Botanical Pharmacognosy - Microscopic characterization of botanical  medicines .-978-1-4200-7326-3 

 -  CRC Press Taylor & Francis Group, Baca Raton  2011 
<br/><br/><label>ISBN: </label>978-1-4200-7326-3 
<br/><br/><label>Dewey Class. No.: </label>I/